Homeostatis
- Submitted by: jan001
- Views: 415
- Category: Science
- Date Submitted: 05/28/2012 11:19 AM
- Pages: 4
- Report this Essay
Section A-
The human species rely on many physiological processes being maintained within a narrow range. Homeostasis is important in order to maintain a steady state and make sure effective functioning of physiological processes stay within an optimal range. This essay will discuss …
X The human species rely on many functional procedures being sustained within a narrow range. Homeostasis is vital in order to maintain a steady state and make sure effective functioning of physiological processes stay within an optimal range. This essay will discuss …
Homeostasis is the name given to the body’s internal control mechanism. It maintains (looks after) the body’s temperature, water and glucose levels.
Homeostasis control mechanisms have a least three components. Receptors, control center and the effector.
The receptors react to change in the environment. It sends it message to the control center within the brain. The control center decides by how much the level needs to be adjusted. It does this by processing the information it has received. It then passes the information to the effector. Efferent pathway is used for this purpose. The out come from this action determines the effect by ether reducing it, causing negative feedback. When this happens the control mechanism is stopped or activates it causing positive feedback where the reaction continues at a greater rate. Homeostasis control mechanisms are usually negative.
Negative mechanisms include body temperature where signals are sent from the hypothalamus area within the brain when temperature is too high or to low.
Body temperature is usually 37.4c, this is temperature means that enzymes function best but body temperature can differ by 0.8c during the day. Temperature receptors are located in the skin; veins and abdominal organs controlling blood flow to the skin enabling us to shiver if cold and sweat if hot.
Blood pressure, respiratory rate, and blood levels, which include glucose, are also...
The human species rely on many physiological processes being maintained within a narrow range. Homeostasis is important in order to maintain a steady state and make sure effective functioning of physiological processes stay within an optimal range. This essay will discuss …
X The human species rely on many functional procedures being sustained within a narrow range. Homeostasis is vital in order to maintain a steady state and make sure effective functioning of physiological processes stay within an optimal range. This essay will discuss …
Homeostasis is the name given to the body’s internal control mechanism. It maintains (looks after) the body’s temperature, water and glucose levels.
Homeostasis control mechanisms have a least three components. Receptors, control center and the effector.
The receptors react to change in the environment. It sends it message to the control center within the brain. The control center decides by how much the level needs to be adjusted. It does this by processing the information it has received. It then passes the information to the effector. Efferent pathway is used for this purpose. The out come from this action determines the effect by ether reducing it, causing negative feedback. When this happens the control mechanism is stopped or activates it causing positive feedback where the reaction continues at a greater rate. Homeostasis control mechanisms are usually negative.
Negative mechanisms include body temperature where signals are sent from the hypothalamus area within the brain when temperature is too high or to low.
Body temperature is usually 37.4c, this is temperature means that enzymes function best but body temperature can differ by 0.8c during the day. Temperature receptors are located in the skin; veins and abdominal organs controlling blood flow to the skin enabling us to shiver if cold and sweat if hot.
Blood pressure, respiratory rate, and blood levels, which include glucose, are also...